【摘要】 根据同心圆非均质合成油藏压力分布的精确解,本文进一步给出了复合油藏内外区域中压降分布的无量纲表达式;求出了内外区域中压降梯度分布表达式;并给出了井壁压降的计算方法及井壁处压降导数表达式。运用本文给的理论表达式(30)、(32),可直接通过电子计算机进行计算或绘图制出复合油藏的压力及压力导数样板曲线图,进行试井分析;利用表达式(25)、(26)可进行油田开发动态分析。更多还原

【Abstract】 Ac cording to the accurate solution for Pressure distribution of thecomposite reservoir heterogeneity concentric circles, the paper obtainsdimensionless expression distribution of pressure gradient for the compositereservoir on inside - outside field. In this paper, at first the expressionof pressure derivatrve in wellwall and caculating method are given. usingthe expression of the theory, calculations and plots can be made by computerdirectly. Further, we obtain these typical curves for reservoir pressure andpressure derivative of well testing analysis. At the same time, by usingthese formulas, the analysis of developing performance of oil field may berealized.更多还原